The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2020
Filed:
Oct. 30, 2017
Hitoshi Hagimori, Tokyo, JP;
Yasuhiro Kinoshita, Tokyo, JP;
Hitoshi Hagimori, Tokyo, JP;
Yasuhiro Kinoshita, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A battery monitoring circuit for a portable device driven by a secondary battery that supplies an electric current via a wiring pattern formed on a substrate. The battery monitoring circuit includes: a current measuring circuit that measures a current value of a current that flows in the wiring pattern by monitoring an amount of voltage drop that occurs in a specific section of the wiring pattern; a converter that converts the current value into a digital measured current value; a first storage part that stores data for compensating a variation in a resistance value of the wiring pattern depending on an individual particularity of the substrate; and a calculating part configured to correct the digital measured current value by using the data to calculate a corrected current value and to calculate a remaining capacity or to monitor a state of the secondary battery based on the corrected current value.